Christopher Schulte schulte+nanog-post at
Fri Dec 28 17:54:37 UTC 2001

At 12:21 PM 12/28/2001 -0500, Ian A Finlay wrote:
>Can anyone shed light here?

1) Both of the listed Nameservers for timed out 
when I sent them non recursive DNS requests.

2) I killed my DNS cache, and asked again for the NS records for  A new third one was listed, and one of the 
original servers began to respond.

3) Another reload shows only 2 servers listed again, and they both respond.

Looks to me as if Microsoft is altering global delegation of their 
windowsupdate service.  Maybe diversifying the dns structure as they did 
with after the attacks a while back?  They now have 12 DNS 
servers scattered around the globe, just to serve dns.

>iaf at duwo/iaf 148=>nslookup
>Default Server:
> >
>*** can't find Non-existent

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